交易異常

Question

我試圖做簡單的休眠數據保存到我的表，但是我在控制檯交易異常，這裏是我的代碼：

logging.java 

@Entity 
@Table(name = "Logging") 
public class Logging implements Serializable { 

    private int id; 
    private String user; 
    private String action; 
    private Date date; 

    @Column(name = "ID") 
    @Id 
    public int getId() { 
     return id; 
    } 

    public void setId(int id) { 
     this.id = id; 
    } 

    @Column(name = "USER_NAME") 
    public String getUser() { 
     return user; 
    } 

    public void setUser(String user) { 
     this.user = user; 
    } 

    @Column(name = "action") 
    public String getAction() { 
     return action; 
    } 

    public void setAction(String action) { 
     this.action = action; 
    } 

    @Column(name = "DATE") 
    @Temporal(TemporalType.DATE) 
    public Date getDate() { 
     return date; 
    } 

    public void setDate(Date date) { 
     this.date = date; 
    } 

，這就是我的插入方法：

public class BaseDAO { 
    public SessionFactory factory; 

    public Session session; 

    public BaseDAO() { 
     factory = new AnnotationConfiguration().configure(
       "hibernate.cfg.xml").buildSessionFactory(); 
    } 

    public void save(Object obj) throws Throwable { 
     session = factory.openSession(); 
     Transaction tx = null; 

     tx = session.beginTransaction(); 
     session.save(obj); 
     tx.commit(); 
    } 

我loginServlet在那裏我救了我的數據：

Logging loggingdto = new Logging(); 
try { 
    loggingdto.setId(1); 
    loggingdto.setUser(loggedInUserDTO.getUserName()); 
    loggingdto.setAction("USER LOGGED IN"); 
    loggingdto.setDate(new Date()); 
    base.save(loggingdto); 
} catch (Throwable e) { 
    e.printStackTrace(); 
} 

我的表DB

create table Logging(
id int not null, 
user_name varchar(50) not null, 
action varchar(50) not null, 
Date date 
primary key (id) 
); 

，在控制檯中出現的數據插入到表，但有錯誤的順序一樣，

Hibernate: insert into Logging (action, DATE, USER_NAME, ID) values (?, ?, ?, ?) 

，它應該是這樣的

Hibernate: insert into Logging (id, user_name, action, date) values (?, ?, ?, ?) 

休眠打印另一個問題

當我檢查表我發現它是空的？

Answer 1

在創建表的查詢中指定的列名和Logging.java文件中有所不同。 這就是爲什麼你的控制檯顯示

_Hibernate: insert into Logging (action, DATE, USER_NAME, ID) values (?, ?, ?, ?)_ 

，而不是 _Hibernate：（？，？，？，）插入記錄（ID，USER_NAME，行動，日期）值_